ഫലകം:Infobox copper

Copper, ₂₉Cu
	Native copper (~4 cm in size)
General properties
Appearance	metallic bronze
Standard atomic weight (Ar, standard)	63.546(3)
Copper in the periodic table
	nickel ← copper → zinc
Atomic number (Z)	29
Group	group 11
Period	period 4
Block	d-block
Electron configuration	[Ar] 3d10 4p1
Electrons per shell	2, 8, 18, 1
Physical properties
Phase at STP	solid
Melting point	1357.77 K (1084.62 °C, 1984.32 °F)
Boiling point	2835 K (2562 °C, 4643 °F)
Density (near r.t.)	8.96 g/cm3
when liquid (at m.p.)	8.02 g/cm3
Heat of fusion	13.26 kJ/mol
Heat of vaporization	300.4 kJ/mol
Molar heat capacity	24.440 J/(mol·K)
Atomic properties
Oxidation states	−2, +1, +2, +3, +4 (a mildly basic oxide)
Electronegativity	Pauling scale: 1.90
Ionization energies	(more);
Atomic radius	empirical: 135 pm ; calculated: 145 pm
Covalent radius	138 pm
Van der Waals radius	140 pm
	Spectral lines of copper
Other properties
Crystal structure	face-centered cubic (fcc)
Speed of sound thin rod	(annealed); 3810 m/s (at r.t.)
Thermal expansion	16.5 µm/(m·K) (at 25 °C)
Thermal conductivity	401 W/(m·K)
Electrical resistivity	16.78 n Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
Young's modulus	110 - 128 GPa
Shear modulus	48 GPa
Bulk modulus	140 GPa
Poisson ratio	0.34
Mohs hardness	3.0
Vickers hardness	369 MPa
Brinell hardness	874 MPa
CAS Number	7440-50-8
Main isotopes of copper
	കാണുക; സംവാദം; തിരുത്തുക; \| references

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